Can I take one of the MyHouse objects that I instantiate, and somehow set it to scale proportionately with its underlying NscComponent container?
When I use the setSize method, which is inherited from NscComponent, it does not change the size of the house1 MyHouse object. It makes the container smaller, but not the object, and the container resizes and clips out most of the house1 object. I had tried to create a new method inside MyHouse.java that resizes each of the MyHouse components that make up the whole house, and that worked, but then the coordinates were all screwed up and the house itself looked like it was all broken apart.
It seems like having to manipulate each individual component of MyHouse objects to resize defeats the whole point of creating an object.
Here is the MyHouse code:
/**
* A new graphic component. This component is used in
* the notes to highlight the process of designing a
* new object and then implementing it.
*
* @author Dan Jinguji
* @author Chris Wilson
* @version Demo: MyHouse
*/
public class MyHouse extends NscComponent {
// instance variables
private NscUpTriangle theRoof;
private NscRectangle theWalls;
private NscRectangle theDoor;
private NscRectangle theWindow;
private NscRectangle theWindowPane;
/**
* Constructor for objects of class MyHouse.
* This creates a MyHouse object at the specified
* location
* @param x the x-coordinate for the object
* @param y the y-coordinate for the object
*/
public MyHouse(int x, int y) {
// Specify the constructor for the superclass
super(x, y, 120, 90);
// Create the roof object
theRoof = new NscUpTriangle(0, 0, 120, 40);
// Set the characteristics of the roof
theRoof.setFilled(true);
theRoof.setBackground(new java.awt.Color(0x99, 0x33, 0x00));
// Place the roof in the MyHouse object
add(theRoof);
// Create the walls object
theWalls = new NscRectangle(10, 40, 100, 50);
// Set the characteristics of the walls
theWalls.setFilled(true);
theWalls.setBackground(java.awt.Color.blue);
// Place the walls in the MyHouse object
add(theWalls);
// Create the door object
theDoor = new NscRectangle(48, 50, 24, 40);
// Set the characteristics of the door
theDoor.setFilled(true);
theDoor.setBackground(new java.awt.Color(0x99, 0x66, 0x33));
// Place the door in the MyHouse object
add(theDoor);
// Create the window object
theWindow = new NscRectangle(80, 50, 25, 20);
// Set color
theWindow.setFilled(true);
theWindow.setBackground(java.awt.Color.white);
// Create custom glass color
java.awt.Color glass = new java.awt.Color(153, 255, 255);
// Create window pane object
theWindowPane = new NscRectangle(83, 53, 19, 14);
// Set color
theWindowPane.setFilled(true);
theWindowPane.setBackground(glass);
// add window and pane
add(theWindow);
add(theWindowPane);
}
/*
* Overloaded constructor for the MyHouse class
* Creates the house objects and also inputs color variable
*
* @param x the x-coordinate for the object
* @param y the y-coordinate for the object
* @param colorVar the color for the walls of the house
*/
public MyHouse(int x, int y, java.awt.Color colorVar) {
// constructor, call super before anything else
super(x, y, 120, 90);
// build roof and set color, then add
theRoof = new NscUpTriangle(0, 0, 120, 40);
theRoof.setFilled(true);
theRoof.setBackground(new java.awt.Color(0x99, 0x33, 0x00));
add(theRoof);
// Create the walls and pass the 3rd constructor parameter for color conversion, then add
theWalls = new NscRectangle(10, 40, 100, 50);
theWalls.setFilled(true);
theWalls.setBackground(colorVar);
add(theWalls);
// Create door, set color and add
theDoor = new NscRectangle(48, 50, 24, 40);
theDoor.setFilled(true);
theDoor.setBackground(new java.awt.Color(0x99, 0x66, 0x33));
add(theDoor);
// Create the window object
theWindow = new NscRectangle(80, 50, 25, 20);
// Set color
theWindow.setFilled(true);
theWindow.setBackground(java.awt.Color.white);
// Create custom glass color
java.awt.Color glass = new java.awt.Color(153, 255, 255);
// Create window pane object
theWindowPane = new NscRectangle(83, 53, 19, 14);
theWindowPane.setFilled(true);
theWindowPane.setBackground(glass);
// add window and pane
add(theWindow);
add(theWindowPane);
}
/**
* Change the color of the house
*
* @param c The color for the walls of the house
*/
public void setColor(java.awt.Color c) {
theWalls.setBackground(c);
repaint();
}
/**
* Retrieve the color of the house
*
* @return The color of the walls of the house
*/
public java.awt.Color getColor() {
return theWalls.getBackground();
}
}
Here is the MyScene code, which instantiates 3 MyHouse objects and places them into the scene.
// Allow short name access to java.awt.Color
import java.awt.Color;
/*
* This is the shell for assignment: MyScene.
* This program draws a simple scene using additional
* classes that the student creates.
*
* @author Dan Jinguji
* @author Chris Wilson
* @version Assignment 4: MyScene
*/
public class MyScene extends NscWindow {
// instance variables
private MyHouse house1;
private MyHouse house2;
private MyHouse house3;
private MyTree tree1;
private MyTree tree2;
private MyTree tree3;
/**
* Constructor for objects of class MyScene
*/
public MyScene() {
// Specify the constructor for the superclass
super(10, 10, 400, 300);
// set characteristics for the object
setTitle("My Scene");
// Draw the sky
getContentPane().setBackground(new Color(0x00, 0xCC, 0xFF));
// Draw some grass
NscRectangle grass = new NscRectangle(0, 100, 400, 200);
grass.setBackground(new Color(0x00, 0x99, 0x00));
grass.setFilled(true);
add(grass);
// instantiate new house objects
house1 = new MyHouse(100, 50, Color.white);
add(house1);
house2 = new MyHouse(200, 150);
add(house2);
house3 = new MyHouse(0, 200, Color.orange);
add(house3);
// request a rerendering of the window
repaint();
// instantiate new tree objects
tree1 = new MyTree(35, 20, Color.white);
add(tree1);
tree2 = new MyTree(290, 50);
add(tree2);
tree3 = new MyTree(5, 60, Color.cyan);
add(tree3);
// request a rerender
repaint();
}
/**
* Alter the scene, by changing color
*/
public void change1() {
// change the color of the houses and trees
house1.setColor(Color.red);
tree1.setColor(Color.black);
house2.setColor(Color.magenta);
tree2.setColor(Color.orange);
house3.setColor(Color.black);
tree3.setColor(Color.pink);
// request a rerendering of the window
repaint();
}
/**
* Alter the scene, by changing location
*/
public void change2() {
// change the location of the houses and trees
house1.setLocation(50, 125);
house2.setLocation(150, 25);
house3.setLocation(0, 150);
tree1.setLocation(25, 10);
tree2.setLocation(300, 20);
tree3.setLocation(150, 90);
// request a rerendering of the window
repaint();
}
/**
* Alter the scene, by changing size of objects and underlying containers
*
*/
public void change3() {
house1.setSize(80, 60);
}
/**
* Alter the scene, restoring original settings
*/
public void reset() {
// reset the initial values for the house
house1.setLocation(100, 50);
house1.setColor(Color.white);
house1.setSize(120, 90);
// reset the initial values for the house
house2.setLocation(200, 150);
house2.setColor(Color.blue);
house2.setSize(120, 90);
// reset the initial values for the house
house3.setLocation(0, 200);
house3.setColor(Color.orange);
house3.setSize(120, 90);
// rest the initial values for the tree
tree1.setLocation(35, 20);
tree1.setColor(Color.white);
tree1.setSize(60, 120);
// rest the initial values for the tree
tree2.setLocation(290, 50);
tree2.setColor(Color.green);
tree2.setSize(60, 120);
// rest the initial values for the tree
tree3.setLocation(5, 90);
tree3.setColor(Color.cyan);
tree3.setSize(60, 120);
// request a rerendering of the window
repaint();
}
/**
* The application method, to test your code
*
* @param args The command-line arguments
*/
public static void main(String[] args) {
// declare a MyScene reference
MyScene aScene;
// instantiate MyScene
aScene = new MyScene();
// pause
javax.swing.JOptionPane.showMessageDialog(null, "Press OK to continue");
// test setColor
aScene.change1();
javax.swing.JOptionPane.showMessageDialog(null, "Press OK to continue");
// test setLocation
aScene.change2();
javax.swing.JOptionPane.showMessageDialog(null, "Press OK to continue");
// test setSize
aScene.change3();
javax.swing.JOptionPane.showMessageDialog(null, "Press OK to continue");
// reset initial values
aScene.reset();
}
}
